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Tai Wiest photo
United Kingdom, Belfast
1 Level
720 Review
57 Karma

Review on NGK 2622 Spark Plug by Tai Wiest

Revainrating 5 out of 5

Use on 1969 Merc 500 works great

I use them on my 1969 Merc 500, they work great. The engine is noticeably easier to start and runs smoothly, and with two temp gauges I can see the engine head is cooler with those old adjustable gap spark plugs.

Pros
  • Patented triple seal process prevents smoke leaks
Cons
  • negative result available